Error 470 in a background process

From: Epicentre Team A ANNECY <djeanneret_at_epicentre.fr>
Date: Tue, 14 May 2002 13:22:50 +0200
Message-ID: <abqrjl$cbd$1@wanadoo.fr>

I've this error in a trc file

2002-05-13 11:02:41.808
SESSION ID:(1.1) 2002-05-13 11:02:41.758 error 470 detected in background process Dump file d:\EPIC1\Trace\bdump\epic1PMON.TRC Mon May 13 11:07:15 2002 ORACLE V8.1.7.0.0 - Production vsnsta=0 vsnsql=e vsnxtr=3 Windows 2000 Version 5.0 , CPU type 586 Oracle8i Release 8.1.7.0.0 - Production JServer Release 8.1.7.0.0 - Production Windows 2000 Version 5.0 , CPU type 586 Instance name: TR09

I've you an idea ?

Bests regars
Epicentre Received on Tue May 14 2002 - 06:22:50 CDT